Scaling of the LED collimators with folded multiple reflections

Sergey Kudaev; Peter Schreiber

doi:10.1117/12.794188

2 September 2008 Scaling of the LED collimators with folded multiple reflections

Sergey Kudaev, Peter Schreiber

Proceedings Volume 7059, Nonimaging Optics and Efficient Illumination Systems V; 70590C (2008) https://doi.org/10.1117/12.794188
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

We investigate the parametrical scaling of LED collimators with folded multiple reflections, described by rational Bezier spline. One can scale the collimator linearly with source size (maintaining residual divergence). Scaling factor should be calculated from etendue conservation if one needs to scale the collimator for a different residual divergence. Both up- and downscaling the collimator (reducing the collimator diameter to obtain the design with larger divergence and vice versa) are considered. Concentrator shape cannot be linearly scaled if we change the material (for example polycarbonate is used in design instead of PMMA). Method allows rapid development of collimating optics.

Citation Download Citation

Sergey Kudaev and Peter Schreiber "Scaling of the LED collimators with folded multiple reflections", Proc. SPIE 7059, Nonimaging Optics and Efficient Illumination Systems V, 70590C (2 September 2008); https://doi.org/10.1117/12.794188

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